CN211187662U - Shoulder joint filling device - Google Patents

Abstract

The utility model provides a shoulder joint filling device, including scapula filling part, the shape of scapula filling part is the defective shape of scapula, scapula filling part includes scapula filling part fusion surface layer and scapula filling part main part to the scapula after cutting far away by the scapula after the nearly excision in proper order, scapula filling part is equipped with the contact surface of the scapula after the excision scapula filling part fuses the surface layer, scapula filling part fuses the surface layer and is porous structure, set up a plurality of lining up in the scapula filling part fuse the surface layer with the fixed nail hole of scapula filling part main part. The shoulder joint filling device is completely matched with the shape and the size of defective bone of a patient, allows a shoulder glenoid to be reserved during operation, and reserves the function of a shoulder joint to the maximum extent.

Description

Shoulder joint filling device

Technical Field

The utility model belongs to the technical field of orthopedic implant, especially, relate to a shoulder joint filling device.

Background

Periglenoid bone tumors are one of the good sites for shoulder tumor development and usually require surgical treatment. The traditional operation method is upper 1/4 amputation, but the upper limb prosthesis can not replace the important function of the hand, so the limb protection operation is particularly important in saving the upper limb function. The current method for limb protection operation of shoulder joint tumor comprises the following steps: artificial prosthesis replacement, autologous ilium scapula reconstruction, bone or bone joint transplantation of allogeneic bone, joint fusion, boneless reconstruction and the like.

However, all of these methods currently do not have a way to perfectly reconstruct the function of the shoulder joint. Because the socket joint formed by the humerus and the glenoid has the characteristic of being very flexible and has the function of moving in various directions. The reconstruction methods used clinically at present are mostly resection joint and post reconstruction. In other words, the patient's own shoulder joint is replaced with an artificial shoulder joint. The artificial shoulder joint can not meet the requirement of the functional recovery of the shoulder joint of a patient at all.

Meanwhile, the conventional acromioclavicular joint prosthesis adopts a conventional material reduction manufacturing mode, and the conventional acromioclavicular joint prosthesis does not have a micro-pore structure and is not beneficial to the growth of peripheral new bone tissues into the prosthesis, so that the early stability of the prosthesis is obtained. Early stabilization is very important for the patient. Because the postoperative patient of orthopedics can cause serious complications such as dropsy pneumonia, bedsore, deep vein thrombosis and the like due to long-term bed rest. It is therefore important that the prosthesis achieves early stabilization, thereby facilitating early performance of functional exercises by the patient. In addition, if the bone forms a very stable integration with the prosthesis, it is advantageous to extend the service life of the prosthesis and reduce the possibility of loosening.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a shoulder joint filling device, including the scapula filling portion, the shape of scapula filling portion is the defective shape of scapula, the scapula filling portion includes scapula filling portion fusion facial layer and scapula filling portion main part in proper order to the scapula after cutting far away by the scapula after the nearly excision, the contact surface of scapula filling portion and the scapula after the excision is equipped with scapula filling portion fusion facial layer, scapula filling portion fusion facial layer is porous structure, set up a plurality of link up on the scapula filling portion fusion facial layer with the scapula filling portion fixed nail hole of scapula filling portion main part. The shoulder joint filling device is completely matched with the shape and the size of defective bone of a patient, allows a shoulder glenoid to be reserved during operation, and reserves the function of a shoulder joint to the maximum extent.

In order to achieve the above objects and other related objects, the present invention adopts the following technical solutions:

the utility model provides a shoulder joint filling device, including scapula filling part, the shape of scapula filling part is the defective shape of scapula, scapula filling part includes scapula filling part fusion surface layer and scapula filling part main part to the scapula after cutting far away by the scapula after the nearly excision in proper order, scapula filling part is equipped with the contact surface of the scapula after the excision scapula filling part fuses the surface layer, scapula filling part fuses the surface layer and is porous structure, set up a plurality of lining up in the scapula filling part fuse the surface layer with the fixed nail hole of scapula filling part main part.

The utility model discloses in some embodiments, still include the mounting, the mounting includes mounting fusion surface course and mounting main part in proper order by shoulder blade after the nearly excision to the shoulder blade after the distant excision, the mounting is equipped with the contact surface of the shoulder blade after the excision the mounting fusion surface course, the mounting fuses the surface course and is porous structure, set up a plurality of lining up on the mounting fusion surface course with the mounting staple hole of mounting main part, shoulder blade filling portion with mounting rounding off connects.

In some embodiments of the present invention, the porous structure is a layered structure with a plurality of layers, each layered structure has a plurality of micropores, and the micropores in each layer are interconnected.

The utility model discloses in some embodiments, still include a plurality of scapula filling part staple, scapula filling part staple with scapula filling part staple hole matches.

In some embodiments of the present invention, at least one of the following technical features is further included:

1) the porosity of the fusion surface layer of the scapula filling part is 70-80%;

2) the thickness of the fusion surface layer of the scapula filling part is 1.5 mm-2 mm;

3) the aperture of the through hole of the fusion surface layer of the scapula filling part is 500-700 μm.

In some embodiments of the invention, the fixing member is Y-shaped.

The utility model discloses in some embodiments, still include a plurality of mounting staple, the mounting staple with mounting staple hole matches.

In some embodiments of the present invention, the fixing member is attached to the scapula contact surface after the fusion surface layer is cut off.

In some embodiments of the present invention, at least one of the following technical features is further included:

1) the porosity of the fusing surface layer of the fixing piece is 70-80%;

2) the thickness of the fusion surface layer of the fixing piece is 1.5 mm-2 mm;

3) the aperture of the through hole of the fixing piece fusion surface layer is 500-700 μm.

As described above, the present invention has at least one of the following advantageous effects:

1) the utility model discloses shoulder joint filling device matches the defective sclerotin shape of patient and size completely, carries out accurate reconstruction to the defective bone tissue after the tumour excision, replaces scapula outside edge completely, remains the shoulder glenoid when permitting the operation, remains the shoulder joint function to the utmost extent.

2) The utility model discloses set up a plurality of scapula filling portion anchor nail holes that link up scapula filling portion and fuse surface course and scapula filling portion main part in the shoulder joint filling device on the scapula filling portion, can also include a plurality of scapula filling portion anchor nails, match with scapula filling portion anchor nail hole, be favorable to the device and the scapula to combine closely, when initial implantation, can carry out the initial stage through scapula filling portion anchor nail and fix, prevent that the false body from shifting, the early stability of device is provided, help the early activity of patient.

3) The utility model discloses set up a plurality of mounting staple holes that link up mounting and fuse surface course and mounting main part on the mounting among the shoulder joint filling device, can also include a plurality of mounting staples, the mounting staple matches with the mounting staple hole, is favorable to the device to combine closely with the scapula, when the initial implantation, can carry out the initial stage through the mounting staple hole and fix, prevents that the false body from shifting, provides the early stability of device, helps the early activity of patient.

4) The utility model discloses be equipped with shoulder blade filling portion on the shoulder joint filling device and fuse the surface course, shoulder blade filling portion fuses the surface course and closely laminates with human sclerotin, and shoulder blade filling portion fuses the surface course and has the micropore structure, is favorable to the new bone tissue to grow into inside the device, and then obtains the long-term stability, improves the life of device greatly.

5) The utility model discloses be equipped with the mounting on the shoulder joint filling device and fuse the surface course, the mounting fuses the surface course and closely laminates with human sclerotin, and the mounting fuses the surface course and has the micropore structure, is favorable to the new bone tissue to grow into inside the device, and then obtains the long-term stability, improves the life of device greatly.

Drawings

Figure 1 is a CT image of a patient (tumor at the intersection of two lines).

Fig. 2 is a scapula reconstruction image of the patient, in which the green part is the tumor resection range.

Fig. 3 is a first structural schematic diagram of the shoulder joint filling device.

Fig. 4 is a structural schematic diagram of the shoulder joint filling device II.

Fig. 5 is a first installation schematic diagram of the shoulder joint filling device.

Fig. 6 is a first installation schematic diagram of the shoulder joint filling device.

Reference numerals:

1-a scapula filling part; 11-the scapula filling part fuses the surface layer; 12-scapula filling part main body; 13-fixing nail holes of the scapula filling part;

2-fixing nails for the scapula filling parts;

3-a fixing piece; 31-a fastener fusion facing; 32-a fixture body; 33-fixing member fixing nail holes;

4-fixing the nail by the fixing piece.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 6. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

A shoulder joint filling device is shown in fig. 3 and 4 and comprises a scapula filling part 1, wherein the scapula filling part 1 is in a shape of scapula defect, the scapula filling part 1 sequentially comprises a scapula filling part fusion surface layer 11 and a scapula filling part main body 12 from scapula cut off near to scapula cut off far away, the contact surface of the scapula filling part 1 and the scapula cut off is provided with the scapula filling part fusion surface layer 11, the scapula filling part fusion surface layer 11 is in a porous structure, and the scapula filling part 1 is provided with a plurality of scapula filling part fixing nail holes 13 penetrating through the scapula filling part fusion surface layer 11 and the scapula filling part main body 12. The scapula filling part 1 and the scapula after being cut form a complete scapula.

The shoulder joint filling device can further comprise a plurality of scapula filling part fixing nails 2, and the scapula filling part fixing nails 2 are matched with the scapula filling part fixing nail holes 13.

The utility model discloses set up a plurality of scapula filling portion that link up on the scapula filling portion 1 among the shoulder joint filling device and fuse facial layer 11 and scapula filling portion main part 12 scapula filling portion anchor nail hole 13, can also include a plurality of scapula filling portion anchor nails 2, match with scapula filling portion anchor nail hole 13, be favorable to the device and the scapula closely combine, when initial implantation, can carry out the initial stage through scapula filling portion anchor nail and fix, prevent that the false body from shifting, the early stability of device is provided, help the early activity of patient.

The porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated. The scapula filling part fusion surface layer is tightly attached to the scapula after being cut off, and the scapula filling part fusion surface layer is provided with a micro-pore structure, so that the growth of new bone tissues into the device is facilitated, the long-term stability is further obtained, and the service life of the device is greatly prolonged.

The porosity of the fusion surface layer of the scapula filling part is generally 70-80%; the thickness of the fusion surface layer of the scapula filling part is usually 1.5 mm-2 mm; the aperture of the through hole of the scapula filling part fusion surface layer is usually 500-700 μm, so that the scapula filling part fusion surface layer is more beneficial to the growth of new bone tissues into the device.

The porosity is the percentage of the volume of the pores in the fused facing layer to the total volume of the fused facing layer in its natural state.

The shoulder joint filling device can be used for filling shoulder joints, in a preferred embodiment, the shoulder joint filling device further comprises a fixing piece 3, the fixing piece 3 sequentially comprises a fixing piece fusion surface layer 31 and a fixing piece main body 32 from a scapula which is cut off nearly to a scapula which is cut off far away, the fixing piece fusion surface layer 31 is arranged on the contact surface of the fixing piece 3 and the scapula which is cut off, the fixing piece fusion surface layer 31 is of a porous structure, a plurality of fixing piece fixing nail holes 33 which penetrate through the fixing piece fusion surface layer 31 and the fixing piece main body 32 are formed in the fixing piece 3, and the shoulder joint filling part 1 is connected with the fixing piece 3 in a smooth transition mode. The fixing piece fusion surface layer 31 is attached to the contact surface of the scapula after being cut off.

The shoulder joint filling device may further include a plurality of fixing piece fixing nails 4, and the fixing piece fixing nails 4 are matched with the fixing piece fixing nail holes 33.

The utility model discloses set up a plurality of fixed part staple holes 33 that link up fixed part fusion surface course 31 and mounting main part 32 on the mounting 3 among the shoulder joint filling device, can also include a plurality of fixed part staples 4, fixed part staple 4 matches with fixed part staple holes 33, be favorable to the device to combine closely with the shoulder blade, when initial implantation, can carry out the initial stage through fixed part staple holes and fix, prevent that the false body from shifting, the early stability of device is provided, help patient's early activity

The overall shape of the fixing piece is not limited, and generally does not exceed the edge of the scapula. The fixing piece is more favorable for the device to be tightly combined with the scapula, and when the fixing piece is initially implanted, the fixing piece can be used for carrying out initial fixing through the fixing nail hole, so that the prosthesis is prevented from being displaced, the early stability of the device is provided, and the early movement of a patient is facilitated. In a preferred embodiment, the fixing member 3 is Y-shaped, and the fixing effect is good.

The porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated. The fixing part fusion surface layer is tightly attached to the scapula after being cut off, and the fixing part fusion surface layer is provided with a micro-pore structure, so that the new bone tissues can grow into the device, the long-term stability is further achieved, and the service life of the device is greatly prolonged.

The porosity of the anchor fusion facing is typically 70% to 80%; the thickness of the fusion surface layer of the fixing piece is usually 1.5 mm-2 mm; the aperture of the through hole of the fusion surface layer of the fixing member is usually 500 μm to 700 μm.

The porosity is the percentage of the volume of the pores in the fused facing layer to the total volume of the fused facing layer in its natural state.

The shoulder joint filling device is shown in fig. 5 and 6 after installation.

The shoulder joint filling device model can be constructed by a construction method comprising the following steps:

1) constructing a three-dimensional scapula model;

the three-dimensional scapula model generally includes a model of each tissue, for example, the model may include a model of a tissue such as skin, bone, blood vessels, nerves, and a lesion (e.g., tumor), the model may reflect a shape and a position of a skin surface of an individual (e.g., a patient), a shape and a position of a bone of an individual, a shape and a position of a tissue such as blood vessels, nerves, etc., a shape and a position of a tumor of an individual, and specific parameters of a tumor thereof, etc. (e.g., volume, etc.). The scapula three-dimensional model can be generally constructed according to CT data and/or MRI data, and the data can be imported into software such as three-dimensional reconstruction design software such as E3D and the like in the construction process, and registration and fusion are carried out, so that the scapula three-dimensional model is constructed; as shown in fig. 1, a CT image of the patient (tumor at the intersection of two lines);

2) determining a resection range, simulating resection on the scapula three-dimensional model to obtain a scapula three-dimensional model after resection, and taking a resection part as an initial scapula filling part model;

when determining the extent of resection, the most active site of the tumor lesion (e.g., the most metabolically active region within the tumor lesion) is typically selected in the model and targeted for resection, and the location and size are determined in the model. One skilled in the art can select the appropriate size and shape for resection; as shown in fig. 2, a scapula reconstruction map of the patient, in which the green part is the tumor resection area;

3) constructing a plurality of scapula filling part fixing nail holes on the initial scapula filling part model;

the scapula filling part fixing nail hole is matched with a scapula filling part fixing nail for fixing the scapula filling part;

the scapula filling part fixing nail can be directly used without modeling, and the hole is arranged according to the type of the selected fixing nail;

4) stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model inwards and constructing a plurality of scapula filling part fusion surface layer units in a layering manner, constructing a plurality of through holes on each scapula filling part fusion surface layer unit to obtain a scapula filling part fusion surface layer model, taking the rest of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model, and enabling the scapula filling part fusion surface layer model and the scapula filling part main body model to form a scapula filling part model;

the through holes on the fusion surface layer units of the scapula filling parts are communicated with each other; the scapula filling part fusion surface layer model is tightly attached to the scapula three-dimensional model after being cut off, and the scapula filling part fusion surface layer model has a micro-pore structure, so that the scapula filling part fusion surface layer is beneficial to the growth of new bone tissues into the device, the long-term stability is further obtained, and the service life of the device is greatly prolonged;

the porosity of the fusion surface layer model of the scapula filling part is generally 70-80%; the thickness of the fusion surface layer model of the scapula filling part is usually 1.5 mm-2 mm; the aperture of the through hole of the model of the scapula filling part fusion surface layer is usually 500-700 μm, so that the scapula filling part fusion surface layer is more beneficial to the growth of new bone tissues into the device.

The scapula filling part model can be constructed and obtained through the steps 1) to 4), and the model can be used as a shoulder joint filling device model. The construction method can also further comprise the following steps:

5) taking part of the outer surface of the cut scapula three-dimensional model as a fixing piece contact surface, connecting at least part of side edges of the fixing piece contact surface with the shoulder joint filling part model, stretching the fixing piece contact surface outwards and constructing a plurality of fixing piece fusion surface layer units in layers, constructing a plurality of through holes on each fixing piece fusion surface layer unit to obtain a fixing piece fusion surface layer model, further stretching outwards from the surface of the outermost fixing piece fusion surface layer unit to construct a fixing piece main body model, forming an initial fixing piece model by the fixing piece fusion surface layer model and the fixing piece main body model, and enabling the joint of the initial fixing piece model and the scapula filling part model to be in smooth transition; the initial fixing piece model is connected with the outer surface of the scapula filling part model obtained in the step 4), and the initial fixing piece model is attached to the scapula three-dimensional model after resection;

the overall shape of the initial fixing piece model is not limited and generally does not exceed the edge of the scapula; in a preferred embodiment, the initial fixing piece model is Y-shaped, so that the fixing effect is good;

the through holes on the fusion surface layer units of the fixing pieces are communicated with each other; the fixing piece fusion surface layer model is tightly attached to the cut scapula three-dimensional model, and the fixing piece fusion surface layer model has a micropore structure, so that the fixing piece fusion surface layer is beneficial to the growth of new bone tissues into the device, the long-term stability is further obtained, and the service life of the device is greatly prolonged;

the porosity of the fixture fusion facing model is generally 70% -80%; the thickness of the fixed part fusion surface layer model is usually 1.5 mm-2 mm; the aperture of the through hole of the fixing piece fusion surface layer model is usually 500-700 mu m, so that the fixing piece fusion surface layer is more favorable for the growth of new bone tissues into the device;

6) constructing a plurality of fixing piece fixing nail holes on the initial fixing piece model to obtain a fixing piece model;

the fixing piece fixing nail hole is matched with a fixing piece fixing nail for fixing the fixing piece;

this mounting staple can not model, directly uses the staple of current model, and the hole sets up according to the staple model of selection.

The shoulder joint filling device can be prepared by a preparation method comprising the following steps: the shoulder joint filling device model is constructed and obtained by the shoulder joint filling device model construction method, and the shoulder joint filling device is prepared according to the shoulder joint filling device model.

Preparation of a shoulder joint filling device can be prepared from the shoulder joint filling device model, typically by 3D printing.

The utility model discloses shoulder joint filling device passes through the preparation of 3D printing technique, matches the defective sclerotin shape of patient and size completely, carries out accurate reconstruction to the defective bone tissue after the tumour excision, replaces scapula outside edge completely, remains the shoulder joint pelvis when permitting the operation, remains the shoulder joint function in the at utmost.

A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of constructing a shoulder joint filling apparatus model as described above.

The computer-readable storage medium, as will be appreciated by one of ordinary skill in the art: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

An apparatus, comprising: a processor and a memory, the memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a model of a shoulder joint filling device as described above.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. The shoulder joint filling device is characterized by comprising a scapula filling part (1), wherein the scapula filling part (1) is in a shape of scapula defect, the scapula filling part (1) sequentially comprises a scapula filling part fusion surface layer (11) and a scapula filling part main body (12) from scapula after being cut off to scapula after being cut off far away, the contact surface of the scapula filling part (1) and scapula after being cut off is provided with the scapula filling part fusion surface layer (11), the scapula filling part fusion surface layer (11) is of a porous structure, and a plurality of scapula filling part fixing nail holes (13) which are communicated with the scapula filling part fusion surface layer (11) and the scapula filling part main body (12) are formed in the scapula filling part (1).

2. The shoulder joint filling device according to claim 1, further comprising a fixing member (3), wherein the fixing member (3) comprises a fixing member fusion surface layer (31) and a fixing member main body (32) in sequence from a proximal resected scapula to a distal resected scapula, the fixing member fusion surface layer (31) is arranged on a contact surface of the fixing member (3) and the resected scapula, the fixing member fusion surface layer (31) is of a porous structure, a plurality of fixing member fixing nail holes (33) penetrating through the fixing member fusion surface layer (31) and the fixing member main body (32) are arranged on the fixing member (3), and the scapula filling portion (1) is in smooth transition connection with the fixing member (3).

3. The shoulder joint augmentation system of claim 1 or claim 2, wherein the porous structure is a layered structure of a plurality of layers, each layer having a plurality of pores, the pores of the layers being interconnected.

4. The shoulder joint filling device according to claim 1 or 2, further comprising a plurality of scapula filling fixation pegs (2), the scapula filling fixation pegs (2) matching the scapula filling fixation peg holes (13).

5. Shoulder joint augmentation device according to claim 1 or 2, further comprising at least one of the following technical features:

1) the porosity of the fusion surface layer of the scapula filling part is 70-80%;

2) the thickness of the fusion surface layer of the scapula filling part is 1.5 mm-2 mm;

3) the aperture of the through hole of the fusion surface layer of the scapula filling part is 500-700 μm.

6. Shoulder joint filling device according to claim 2, characterised in that the fixing element (3) is Y-shaped.

7. The shoulder joint augmentation device of claim 2, further comprising a plurality of fastener fixation pins (4), the fastener fixation pins (4) mating with the fastener fixation pin holes (33).

8. The shoulder joint filling device according to claim 2, wherein the fixture fusion facing (31) conforms to the scapular contacting surface after resection.

9. Shoulder joint augmentation device according to claim 2, further comprising at least one of the following technical features:

1) the porosity of the fusing surface layer of the fixing piece is 70-80%;

2) the thickness of the fusion surface layer of the fixing piece is 1.5 mm-2 mm;

3) the aperture of the through hole of the fixing piece fusion surface layer is 500-700 μm.

Images